Thursday, April 28, 2011

Airport close in volcano justified event

The disruptive closing of some European airports after the last volcanic eruption in Iceland was to do the right thing and may have saved lives, concludes a new study.
The hard, sharp particles of volcanic ash high into the air blown up Jet engines fail caused and sand-blasted plane Windows to the point where it would be impossible to see according to a study conducted by SigurĂ°ur Gislason of University Iceland.
"We have shown that the airport closures were justified," said co-author Susan Stipp University of Copenhagen. Their research was published Tuesday in the proceedings of National Academy of Sciences.
14 The eruptions began April 2010, with an explosive blast at Eyjafjallajokull (ay-yah-FYAH-lah-yer-kuhl) spewing volcano and ash continued for weeks. The event the most countries in Northern Europe forced to close their airspace for 15-20, grounding of 100,000 flights and an estimated 10 million travelers worldwide between April. The shutdown cost airlines more than $2 billion.
If the ash particles in Jet engines were sucked she could have melted on the whirling sound caused to fail the engine, the report said. And there was a high risk of scouring the surface of level, carried out according to the researchers, the tests on samples of ash.
Even two weeks which vigorously stir the ash error rounds the edges of the particles, so sharp and hard opaque when at high speed, turn enough to a plane window, according to the study.
The report recalls the case of a British Airways 747 that flew into a cloud of ash on Indonesia 1982, in which all four engines failed and the pilot reported that the Windows were sandblasted. In this case the pilot in the location, some of the engines was restarted and it managed an emergency landing of peering from a 2-inch clear area in a page window.
By Randolph E. Schmid
AP science writer

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